Curt Manufacturing 56278 Custom Trailer Wiring Harness (Provides a 7-Way RV Blade Connector for Specific Ford Vehicles) Plugs into vehicle tail light assembly to provide a 7-way RV blade socket Simple plug-and-play design eliminates the need for cutting or splicing 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power Spring-loaded dust cover keeps connector clean when not in use Slit loom keeps wires contained and well protected